<!doctype html>
<style>
    td {
        width: 50px;
        height: 50px;
        padding: 0px;
    }
</style>
<script src="../../resources/check-layout.js"></script>
<script src="../../resources/run-after-layout-and-paint.js"></script>
<script type="text/javascript">
    runAfterLayoutAndPaint(function() {
        document.getElementById("row").style.borderWidth = "4px";
        checkLayout("table");
    }, true);
</script>
There should be a square with a 4px blue border.
<table style="border-collapse:collapse" data-expected-width=58 data-expected-height=58>
    <tr style="border:18px solid lightblue" id="row">
        <td />
    </tr>
</table>
